Jamb attachments for window structure



IIW/E/VTOFS AMMELL SR. EARL M. TRAMMELL JR.

EAR L M. TR

May 13, 1958 E M. TRAMMELL, SR., ET AL JAMB ATTACHMENTS FOR WINDOWSTRUCTURE Original Filed May 11, 1949 JANE A'I'IAQHMENTS FOR WINDOWTRUCTURE Earl M. Trammell, Sn, and Earl M. Trammell, In, St. Louis, Mo.

lriginal application May 11, 1949, Serial No. 92,572,

new Patent No. 2,676,367, dated April 27, 1954. Di- Zided and thisapplication .lanuary 28, 1954, Serial No.

Claims. (Cl. 2ll-52) This invention relates to improvementsin windowunits, and more particularly to improved framing in and of winatesPatent dow units of sliding sash type such as to enhance the ease bodiedin a Window unit for example one of double hung Q or horizontal slidingsash type, in which either sash is susceptible of a virtually effortlesslifting and lowering or sliding movement, and in which a degree ofair-sealing effect is attained which exceeds that of most if not allconventional window units. A further and highly important objective isrealized in a window framing which permits easy removal of the sashfrom, and reapplication to the sashway at any time.

A further object of the invention is realized in a metallic sashwayliner over certain of the elements of the sashway structure, and whichis designed in furtherance of the purposes stated.

It is an important objective to realize as an article of manufacture acover or framing element formed of a single strip of metal, and formedto provide a relatively smooth covering over the adjacent jambs ofdouble hung window units, and sill head jambs of horizontal slidingwindows. Of further advantage, the cover is inexpensive to manufacture,simple and durable in construction, and adapted to be quickly and easilyapplied to the sashway of the window unit to afford the severaladvantages noted above.

An additional and highly valuable objective of the present improvementsconsists of a snap attachment feature, facilitating attachment of thecover element to a parting bead or the like. Similar provisions may beutilized in other sashway or framing elements such as a resilientweather-sealing element.

The foregoing and many additional objects and advantages of the presentimprovements will more clearly appear from the following detaileddescription of a preferred embodiment, particularly when considered inconnection with the accompanying drawing, in which:

Fig. 1 is a vertical, partly sectional elevational view taken in avertical plane in the sashway, with certain of the parts considerablyforeshortened, this view showing the location and configuration ofrecesses and camming portions of the cover element;

Fig. 2 is a fragmentary sectional view taken in a horizontal'planeshowing the left hand side of the sash assembled in its sashway, anddisclosing the structure which constitutes the window framing; t

ass sts Patented May 13, 1958- Fig. 3 is a fragmentary, sectionalelevation, showing the configuration of the recesses formed in therails, and their relation to the roller fixtures carried by the sash,Fig. 3 being located by line 3-3 of Fig. 2;

Fig. 4 is an enlarged sectional view taken edgewise of a portion of therail or guide track located at opposite sides of the sashway, Fig. 9illustrating a camming formation on such track, and

Fig. 5 is a sectional view taken in a horizontal plane showing theconfiguration of the cover or framing element as disassembled.

Referring now by characters of reference to the drawing, the upper sashis indicated generally at 10 and the lower sash generally designated at11. Each such sash comprises the usual sash stiles and check rails 14and 15 (Fig. 1), and the frame elements include the usual inside casing,stool 17, apron 18, and a blind stop 19, and other suitable or usualframing and sash elements, all familiar to those skilled in this art.The window framing further includes a vertical or pulley jamb 21 havinga groove or channel 22 into which a parting bead 23 is fixed.

Located at each sashway, is a metal track element 24 provided with asuitable anchorage provision later fully described, such rails 24 beingsecurely assembled in place in vertical position within the sashway. Theterm sashway as employed herein denotes the several channel-forming andframe elements within and along which each sash 10 or 11 is guidedlymovable and normally restrained to operation in its own plane. For example, as to the upper sash 10, the sashway is formed by the partinghead 23, pulley jamb 21 and blind stop 19 at each of the oppositevertical margins, together with the transverse or horizontal elements atthe ends of the window frame.

A plurality of roller fixtures generally indicated at 25 coact with therails 24. These roller fixtures are preferably located in the regions ofthe opposite lower and opposite upper margins of each sash. The rollerfixtures 25 are structurally and functionally described in detail in ourcopending divisional application Serial No. 92,572

noted above, but for completeness of disclosure it willbe noted thateach such fixture includes a roller 28 provided with a V groove 26engaging a bevelled or apexed rail-ball or roller-engaging head portionprovided on each of the rails 25. Certain of the roller fixtures 25include a leaf spring 27 by which a roller bracket 30 is carried,

27 tending to bias the roller outwardly of I each. spring the sash.

By preference, each of the upper and lower sash is marginally routed orotherwise recessed to receive the roller fixtures 25. It will benotedthat, as described in the noted copending divisional application,certain of of spring type in which the roller 28 is urged or biasedoutwardly by a leaf spring 27, while of the fixtures are not thefixtures 25 are certain others of the rollers 28 resiliently mounted. Itis possible to employ springsupported roller fixtures throughout, or inother arrange 4' ments with non-resilient roller fixtures on the sash.

A clearance is provided considerably exceeding the,

usual spacing or tolerances in a sliding sash assembly,"

between the pulley stiles and each adjacent vertical sash stile, thisabnormal spacing being provided along at least one, and preferably eachof the opposite sides of' each sash, as is indicated at 31, andclearance is provided at the sides of the pulleystiles so as to permitdepthwise sash displacement. I i i j Fig. 2 disciose's the structure ofthe window framing at the left hand side of thewindow unit, but it willbe readily apparent that the right hand side is identical, being onlyreversed in position. I For the purpose ofpermitting removability of thesash, each of the rails 24 on one side of the frame, in the presentexample the. left hand side (Fig. 2) is provided. in.

particular locations along the sashway, with recessed or cutawayportions 32. There are two such recesses 32, one'i'fon eaclrof. the:rollers 28: on the left hand side (Fig. 2). of each sash; assuming tworoller fixtures. 25" at this sidez. Tdreupper'pairofcrecesses.32'servethe lower sash rollers 28. A corresponding pair of cutaway portions 32in: the; lower: part of the rail 24 serving the upper sash,accommodate,. for removal, the rollers. 28 of. 'sash i 10.These;track.recesses 32;.together with the clearance provided laterallyof each of the sash astindicated at 31, enablezeachiofithe sash whenpositioned-with: its pulleys oppositeithexcompanion cutaway portions, tobe laterally. shifted, i. e. in the plane of the sash: and. to? the left(Fig. 2); to" permit. sasli removal, as will later bedescribed; moren111y..

For completenessof understandingjthe full assembly, itLmayJ bementioned; although forming: no part ot' the present improvementsper.se;. that each unit will be provided; with one or: more sashcounterbalance units. (not shown); thesebeingsug'gested. to-be of springtype currently available-.tdthetrade. These: counterbalance:unitsareattached: to; the respective sash by fixtures. providing an automaticcaptive: provision for the counterbalance tape,incident-to-sash:removal.. These features and the fiXlJJI'BSE by which:this: result. is accomplished. constitute the=subject: matter of: acopending divisional application Serial No; 92,572 filed-May 1-1,. 1949and entitled Windew Units, to-which attention is. directedfor a detaileddescription ofsuch connectors and :fixtures:

Asspreviously noted, the'manual removability of either the upper orlower sash. 10 -11 is provided for' when cach-suehrsashismoved to a moreor less predetermined locationv in its own sashway. It is most practicalto providea distinct removal zone for each such'sash as it.

track or rail recesses 32 which p'ermita-shifting movement:

otthe sash-whenthe rollers-23 on-that side of the sashadjacentrthewrecessed track are broughtopposite such. recesses 32whereby to p'ermit the sashto be moved to the, left: (Fig 2.) 4 to bringthe rollers Ztiinto the recesses 32:- The genera-l purpose of therecesses 32'inzthe; track 24 is presently described for betterunderstanding. of certain-features-ota metal'jamb cover 33 constitutinga valuable feature of the present improvements.

Over-lying each=ofthe opposite pulley 'jamhs 21 is a specially:formedmetaljarnb' cover 33 which may be" providedin'strips or rolls asa'n. articleof manufacture,

and which'inpreferred form-includes abase prtion329g whichinefiectprovides a-smooth planar overlayror: liner. betweentbe pulley jamb-21andthesash; By preference, the jamb cover 33 is formed-of ametalotasnoncorrodingcharacter, such as anodic aluminum, or aluminumalloy sheet, and may be of rolled orextruded stock. The jambcover 33 isof such-a width that its side margins. extendslightly beyond the sashwayproper and are either slotted-into or gripped between the adjacentelements, for example the member 19and into a region between pulley.jamb Z-Iand-an element of the lower trim of the frame. Thus, the sidemargins of the strip are concealed.

Thepr imary anchorage of the jarnb cover 33 consists ofaresilient,intermediate, inverted channel with sides 34, each side 34 including aformed internal bead or reentrant rib 35, each such rib engaging andgripping a conforming groove 36 in the parting bead 23. inter fittingarrangement securely anchors'the cover 33;

Secured as by riveting or otherwise through theoutr:

part of the resilient channel portion of cover element-33 justdescribed, is a' dust pad indicated at 44 and-servings.

whenboth. sash are closed, as a seal between their adjacent marginalportions. This pad 44 forms of itself no part of present improvements,but is mentioned for completeness.

From Fig. 5, it is seen. that the base portion 29 of cover element 33extends laterally outward of sides 34, and assumes an' angularv orslightly curved configuration in its disassembled form. The resilientsides 34 of the inverted channel are convergently related and the partsof base portion 29 on each side of resilient sides 34 are angularlyrelated to give a curved appearance. When resilient'sides 34 are snappedon bead 23, the sides 34 are spread and hence resilient base portion 29,which is normally angularly related (Fig. 5), is held fiat against thejamb 21 as is shown in Fig. 2. Because of the normal angular dispositionof resilient base portion 29, the cover element 33 is fastened to jamb21 without the use of any screws ornails. The force exerted on jamb 21by base portion 29, in itsfiattened, assembled state (Fig. 2)., issufficient to retairu the base portion 29 securely against jar'nb' 21ain order for base portion 29 to exert this retaining force, it isobvious that sides 34 must secu'rely gripbeadi23.

A further. highly advantageous feature of the present improvementsconsists in combining, preferably as a one piece structure, a" metaltrack element, such as the described member 24 in each sashwa' withthejamb cover 33'. It will appear: particularly from" Fig. 2 that the railelement or'guide thus identified is formed by a double folded portion ofthe body of sheet metal forming the jarnb cover 33. The zone of fold, orbight, is, however, so con'tormed-to constitute thereof a rail head orball 45. This ball or' head'portion 45 is engaged by the rollers '28,-andis'shown as'ofgenerally triangular sectional'shape, the oppositesides of the head presenting a slope-of the order of'45degrees to theplane of the flange or body: of the rail24. .It is noted as a preferredstructure, to'for'mthe rollers 28W'ith both an inner groove 46and'an-outer'groove 47;. the outer groove 47 conforming substantiallyin'siope to that of the'sides of the ball 45 of the rail or track 24,and the inner groove preventing contactof the roller 28 withthe apex ofthe rail'Zd.

The jamb cover 33,Ip'referably formed of a single piece ofmetal asnoted,is characterized'by a further important feature consisting of one ormore fixed cam formations' 50pthe locations of such camming portions 50beiug-best'showmby Fig. l; and'their detail best shown by Fig. 4. Eachof these'fi'Xed cams 50' consists of a laterally'defiected:portion ofthe ball or head of the track in the regions shown, the deflectionbeing'an outot-plane deformation of a; shortfsection of the radioa*direction tending torur ge the lower sash outwardlyof.

theparting'bead 23Fand in'sealing relationwith the'jamb' the sashrollers: 28; the sash'is desirably tightenedwiththe noted sealingefliects':

From-the foregeingitrwill'now have appearedthatthe jamb cover 33 in itsmost complete form includes in a-single structurefthe adjacent integralguide-'rail'or track 24; the' recesses 32 establishingthe zonesof sashremoval; the resilient self-anchoring assembly including'the snaponfeature of the janib=cover 33 identified with itschannel andreentrantTportion's as well as the weather-sealing etteets in;cooperation-with the sash stiles, provided'by the cammingiformation'stkItisithought that the function of-theseveral portions otithewindowunitas an assembly; and in particular the metal cover element 33constituting; a portion'ofthe window framinghas becorn'etully apparentfrom the foregoi-ng'description of partsj lt may be noted'forfurthercompletencss that; assuming 1' it is desired to remover the uppersash, the sash 10 isvmoved to alowered position so that the rollers 28on its left hand margin are brought opposite the lower pair of recesses32, thus enabling a movement of thesash to the left (Fig. 2) with thesash margin brought into the normally unoccupied clearance space 31 ofthe sashway. This translatory movement is suflicient to cause the righthand side of the sash to clear its track and stops. The right band edgeof the sash 10 may then be brought bodily toward the operator as with aswinging movement, then moved edgewise or in its own plane to the right(Fig. 2) a distance such that the sash will clear the left hand stops,etc. of the sashway. Reapplication of sash 10 may of course beaccomplished by a series of corresponding steps in reverse order fromthose described for sash removal.

Assuming the lower sash 11 to be in a normal operating relation to itssashway, and that it is desired to remove same as for cleaning orotherwise, the sash 11 is raised to an uppermost position such that itsrollers 28 are opposite the pair of track recesses 32 which appearuppermost in Fig. 1. The sash 11 is then moved to the left (Fig. 1) sothat the right hand stile of the sash will clear the adjacent frameelements, and may be swung toward the operator, then shifted to theright (Fig. 2), and-clear of the sashway. Reapplication of this sash is,now obviously, made he reversing the sequence of steps recited.

It has been pointed out that the counterbalance tapes (not shown) are ormay be virtually automatically disconnected incident to the aforesaidremoval of sash, and are similarly properly reconnected to the sash uponreinsertion, the counterbalance tapes being held captive when the sashis out of the frame. As noted, the improvements making for this resultare fully disclosed in and by copending divisional application SerialNo. 92,572.

Although the invention has been described by making a particularizedreference to a single preferred embodiment,the detail of description isnot to be understood as restrictive, numerous variants being possiblewithin the principles disclosed and within the fair scope of the claimshereunto appended.

We claim as our invention:

. 1. As an article of manufacture, a length or strip of metal formed toconstitute a cover strip overlying portions of a window frame forsliding sash, the cover strip including a longitudinal channel ofresilient character, said cover strip having an intermediate portionproviding a sash guide rail for coaction with a rail-following elementcarried by the sash, said guide rail being pro vided with a depthwiserecess therein adapted to clear a rail-following element on the sash.

2. As an article of manufacture, a length or strip of sheet metal formedto constitute a cover overlying a portion of a window frame for slidingsash, the cover strip including a longitudinal channel of resilientcharacter, said cover strip having an intermediate portion providing asash guide rail for coaction with a rail-following clement carried bythe sash, said guide rail being provided with a camming portiondeflected out of the normal line of the rail in a'direction to urge therail-following element on the sash in a sash-sealing direction.

3. As an article of manufacture, a metallic cover strip, formed of asingle strip of metal, the cover strip being formed to provide arelatively smooth covering over adjacent frame portions of a windowunit, the strip constituting the cover being characterized by anintermediate, longitudinal, inverted channel portion, the sides of whichare of a resilient character, the cover strip having a portion on eachside of said channel portion to provide a metal guide rail, each saidguide rail being enlarged to form a rail-ball at its outermost margin,adapted for engagement by a rail-riding element carried by the adjacentsash in assembly, each of said guide rails being further characterizedby a camming portion deflected out of the normal line of the rail in adirection to urge the rail-riding element on the sash in a sash-sealingdirection, and each said rail further being characterized by a depthwiserecess therein adapted to clear the rail-riding element on the sash.

4. As an article of manufacture, a cover element including an invertedchannel portion having sides which are of resilient character adapted toreceive in gripping relation, a bead element of a window frame, saidcover element including a base portion extending laterally outward ofsaid resilient sides, said base portion being normally angularly relatedto said sides so as to exert a retaining force on an adjacent fixedelement of the sashway. 1 1,

5. In a window unit including frame elements forming a sashway, theframe elements including a bead element and an adjacent jamb element, acover element including a channel portion having resilient sides adaptedto receive the bead element, means selectively attaching the channelportion to said bead element, the cover element including a resilientbase portion extending laterally outwardly of and divergent from saidsides and normally angularly inclined toward the said adjacent fixedjamb element, whereby the resilient portion engages the jamb element andexerts a retaining force thereagainst when the channel portion isattached to the bead element.

References Cited in the file of this patent UNITED STATES PATENTS304,222 Morrison Aug. 26, 1884 2,192,776 Robinson Mar. 5, 1940 2,236,250Robinson Mar. 25, 1941 2,267,021 Glass Dec. 23, 1941 2,663,896 Trammellet a1 Dec. 29, 1953 2,676,367 Trammell et al. Apr. 27, 1954 2,740,172Christensen Apr. 3, 1956

